參數(shù)資料
型號(hào): TK15326
廠商: TOKO Inc.
英文描述: Audio Analog Switch
中文描述: 音頻模擬開(kāi)關(guān)
文件頁(yè)數(shù): 4/12頁(yè)
文件大?。?/td> 210K
代理商: TK15326
Page 4
June 1999 TOKO, Inc.
TK15326
TOTAL HARMONIC DISTORTION (FIGURE 4)
Use the lower distortion oscillator for this measurement
because distortion of the TK15326 is very low.
1) Pin 5 is in the open condition, or low level.
2) Connect a distortion analyzer to Pin 3.
3) Input the sine wave (1 kHz, 1 Vrms) to Pin 4.
4) Measure the distortion of Pin 3. This value is the
distortion of 1-Ach.
5) Next connect Pin 5 to the V
, or high level.
6) Input the same sine wave to Pin 2.
7) Measure in the same way. This value is the distortion
of 1-Bch.
CONTROL INPUT IMPEDANCE (FIGURE 3)
This is the input resistance of the control terminal.
1) Measure the inflow current from V
CC
to Pin 5.
2) Calculate:
IMP = V
/ Inflow Current
This resistance is the input impedance.
TEST CIRCUITS AND METHODS (CONT.)
Figure 3
VOLTAGE GAIN (FIGURE 5)
This is the output level against input level.
1) Pin 5 is in the open condition, or low level.
2) Connect AC volt meters to Pin 4 and Pin 3.
(Using the same type meter is best)
3) Input a sine wave (f = max. 20 kHz, 1 Vrms) to Pin 4.
4) Measure the level of Pin 4 and name this V1.
5) Measure the level of Pin 3 and name this V2.
6) Calculate Gain = 20 Log (( |V2 - V1| )/V1)
V1<V2 + Gain, V1>V2 - Gain
This value is the voltage gain of 1-Ach.
7) Next, connect Pin 5 to the V
, or high level.
8) Input the same sine wave to Pin 2.
9) Measure and calculate in the same way.
This value is the maximum input level of 1-Bch.
VCC
VEE
+
+
VCC
Cont.
+
+
VEE
+
Figure 4
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